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Balancing Chemical Reactions

Authored by Marlene Brum

Chemistry

10th Grade

NGSS covered

Used 2K+ times

Balancing Chemical Reactions
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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_P4+_O2 →  _P2O3

3 P4+1 O2 → 2 P2O3
1 P4+1 O2 → 2 P2O3
1 P4+ 3 O2 → 2 P2O3
1 P4+ 2 O2 → 3 P2O3

Tags

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

_AgNO3 + _Cu →_Cu(NO3)2 + _Ag

2 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 1 Ag
2 AgNO3 + 1 Cu → 1 Cu(NO3)2 + 2 Ag
1 AgNO3 + 2 Cu → 2 Cu(NO3)2 + 1 Ag
3 AgNO3 + 2 Cu → 3 Cu(NO3)2 + 2 Ag

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_BaS + _PtF2 → _BaF2 + _PtS

1 BaS + 1 PtF2 → 1 BaF2 + 1 PtS
4 BaS + 2 PtF2 → 1 BaF2 +  1 PtS
1 BaS + 2 PtF2→ 2 BaF2 +  2 PtS
1 BaS + 3 PtF2 →1 BaF2 +  2 PtS

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_AlBr3 + _K2SO4 → _KBr + _Al2(SO4)3

6 AlBr3 + 1 K2SO4 → 6 KBr + 1 Al2(SO4)3
2 AlBr3 + 3 K2SO4 → 6 KBr + 1 Al2(SO4)3
1 AlBr3 + 1 K2SO4 → 2 KBr + 3 Al2(SO4)3
2 AlBr3 + 3 K2SO4 → 1 KBr + 2 Al2(SO4)3

Tags

NGSS.HS-PS1-7

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_SO2 + _Li2Se →_SSe2 + _Li2O

1 SO2 + 2 Li2Se → 1 SSe2 + 2 Li2O
1 SO2 + 1 Li2Se → 2 SSe2 + 2 Li2O
2 SO2 + 2 Li2Se → 2 SSe2 +  2 Li2O
2 SO2 + 2 Li2Se → 1 SSe2 + 1 Li2O

Tags

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_Al + _HCl →_H2 + _AlCl3

2 Al + 2 HCl → 2 H2 + 6 AlCl3
3 Al + 3 HCl → 6 H2 + 2 AlCl3
1 Al + 1 HCl → 3 H2 + 1 AlCl3
2 Al + 6 HCl → 3 H2 + 2 AlCl3

Tags

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

_K + _Cl2 →_KCl

2 K + 16 Cl2 → 8 KCl
2 K + 1 Cl2 → 2 KCl
3 K + 4 Cl2 → 3 KCl
1 K + 1 Cl2 →1 KCl

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

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